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(No Model.) 2 Sheets-Sheet 1.

J. G. THAYER.

, AUTOMATIC LUBRIGATQR. No. 294,163. Patenwd` Feb. 26, 1884.

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(No Model.) l 2 sheeuswsneen J. C. THAYER.

AUTOMATIC LUBRIGATOR. No. 294.163. Patented Feb.d26, 1884.

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JOHN C.l THAYEE, OE CHICAGO, ILLINOIS, ASSIGNOE OE ONEHALE To CHARLES H; MORSE, OE SAME PLACE.

AUTOMATIC LUB'RICATOR.

SPECIFICATION formingpartof Letters Patent No. 294,163, dated February 26, 1884.

Application led October 17, 1883. (No modelv) oiler or lubricator, to render the same neat,

compact, light, and durable in its structure, and to accessibly inelose the operative parts ofthe oiler within the casing or oil-reservoir, so that the joints and bearings shall be pro- I 5 tected from dust, and also be eonstantlylubrr cated, in Order that under all circumstances the val'veoperating mechanism shall work` readily and easily. A further obj ect is to provide certain improved'features of construc- 2@ tion and combination, whereby certainty of action on the part of the valve-operating meehanism at each impulse of the connecting-rod, eccentric, or other operating member of the engine by which the lubricator is carried shall be insured; also, to provide simple and eiiieient means for regulating the extent to which the valve can beopened, so as to regulate the quantity of oil discharged from the oilreservoir at each time the valve is opened. rIhese 3o objects' I ,attain by arranging and inclosing the valve and valve-operating mechanism en tirely within the oil-reservoir, and also by providing means for limiting the play of the valve, all in the manner hereinafter described, and illustrated in the annexed drawings', in

whichf' Figure l represents a section taken 'on aver tical central plane through the lubricator, with the valve and its operating mechanism shown 4o in elevation. Fig. 2 is a similar view, with a slight variation in the means for operating the valve, the tie rods or bolts, for the` caps of the reservoir, passing in this instance through the interior of the latter instead of outside of the saine, as in the preceding figure. Fig. 3 is also a like view, with a slight change in the arrangement of the means for regulating the valve.

Referringby letter to the several figures of 5o the drawings, in which like letters denote like parts, A indicates the oilreservoir, which is preferably constructed with a cylindrical glass body, a, to each end of which is fitted a hanged metal cap. These caps are held securely upon the said body, and drawn tightly against any suitable packing 011 the end of the body, by means of the rods or bolts B, which can either be arranged outside ofthe reservoir,

as in Fig. l, or within the latter, asin Fig. 2, as may be preferred. In the former inst ance the 6o caps will each beprovided with radial lugs, or with a peripheral iiange, in order to provide bearings for the bolts, orthe bolts can be passed` through the body of each cap, as in Fig. 2, in 4 which lease the peripheral flanges can be dispensed with, and the lubricator thereby reduced in bulk, while at the same time the bolts are ine-losed by the reservoir, and hence a neater appearance given to the lubricator. The cap C at the bottom of the reservoir is provided with 7o a passage, D, for the outflow of oil, and a suitable valve, E, is arranged within the reservoir for opening and closing the said passage D, in ord-er to establish and cut oliC the outflow of oil. The valve-stein E of this valve is shown 7 arranged vertically and centrally within the reservoir, and is prolonged below the valve in' order to admit of its being extended into the oil passage, so as to steady and center both the valve and upper portion of the stem, and to 8O insure the valve Abeing properly seated when the latterdrops to close the passage. This prolongation e ot' the stem is made triangular, or of other polygonal shape in cross-section, so-

that when the valve is liftedfrom'its seat, 011.85

from the reservoircan pass between thewalls of the passage andthat portion of the stem that is fitted to work within thelatter. The

weighted vibratory lever G, for operating the valve, is fulerumed upon any suitable bearing 9o within the oil-reservoir, and is entirely inclosed by the latter, the bearing employed for said lever heilig conveniently formed with or secured upon the cap which cdnstitutes the bottom of the reservoir. I This vibratory lever 9 5 is provided with a pair of arms, one of which rises within the reservoir, and carries a weight,

II, secured to or formed with the lever, while the remaining arm enga-ges the valve-stein, so that a vibratory movement on the part of the Ioo lever shall reciprocate the Vvalve-stem, and thereby cause the valve to alternately open and close the oi1-passage leading from the reser- VII' It will be manifest that various modes of establishing a connection between the vibratory lever and the valve or valve-stem can be adopted without departing from the spirit of my invention. In Fig. l, I have-shown the stem formed with a substantially U-shaped bend at a point above the valve, and the lever having one of its arms extending into the bend of the valve-stem, while the remaining upper and longer arm is weighted at its upper end. Under such arrangement, when the valve is closed, the weighted arm of the lever normally stands in an upright position, from which it will be thrown by such vibratory motion on the part ofthe entire structure as the motion of. the operating member of the machine to which the lubricator is attached will give to it. It will be seen that after the weighted arm has swung away from the stem and assumes an inclined position the weight of the stem and valve will tend to swing the lever back toits normal position and seat the valve, and that the valve and stem will therefore operate as a counterbalance to the weighted arm. In Figs. 2 and 3, however, the lower arm of the lever engaging the valve-stem is madesomewhat longer than in Fig. 1, and passes through an eye or opening, G', formed in the stem, which can be-enlarged at such point, in order to admit of an opening of suitable size for ther lever-arm being made. This elongation of the said arm of the lever and the mode of engaging it with the stem enables the adj listing-screw for regulating the extent to which the valve can 'open to be arranged in a dii-ferent position from that shown in Fig. 1, in which said iigure the upper end of the valve-stem extends into a bore formed axially through a fillingplug, H, that is screwed or otherwise reA movably secured to the top cap of the reservoir. The wall of the bore h in this knob is made screw-threaded' for all or a portion of its length, and the adjusting-screwl is fitted to turn in said bore of the knob, so that by adjusting the screw it will constitute a stop for limiting the upward movement of the valvestem, and hence regulate the extent to which the latter can belifted. To prevent the adjusting-screw frombecoming accidentally turned, a nut, k, is fitted upon the screw, and by tightening this nut down on the plug the adjusting-screw will be held securely in place and prevented from working down. In Fig. 3, however, the plug is shown provided with a smooth-bore, hf, in its lower portion only, and while the valve-stem works in said bore, and is thereby guided and steadied, it might work through some other form of guides. The adjusting-screw passes through the cap, and is provided on its screw-threaded portion above the cap with a nut, k, that screws down on the cap, so as to prevent the screw from accidentally working out of its proper adjustment, while the lower end of the screw stands in the path of the lower arm of the vibrating lever. It will beseen under this arrangement that when the valve is open the weighted arm of' the vibratory lever stands in an inclined position, while its remaining arm bears against the adjusting-screw, which acts as a stop to limit the kextent of vibration of the lever one way, and hence to limit the height to which the valve can be lifted. Suitable provision, of course, will be made for admitting air to the reservoir-as, forexample, the adjustingscrew can be provided with an axial passage, as in Fig. l, or a pin-hole made. in the top cap or case. The bottom cap has a neck, C', depending therefrom, made screw-threaded externally, whereby it can be conveniently iitted on an eccentric, connecting-rod, cross-head, or other member of the engine or machine having a vibratory, recipr.ocatory,vor oscillatory movement.

Having thus described my invention, what I claim, and desire to secure by Letters Patent,

l. In a lubricator, the valve provided with a stem having an elongated opening, in combination with the right-angled lever having a iixed pivot bearing in its angle, its perpendicular arm weighted at the upper end, and its other arm working loose in the elongated opening in the valve-stem, substantially as described.

2. The reservoir and the valve provided with a stem having a bearing at each extremity of the reservoir, in com'bination with an angular lever connected with said stem, and having a xed pivot bearing in its angle, and its perpendicular arm weighted, substantially as described.

JOHN c. THAYER.

Vtnesses:

W. W. ELLIOTT, Orres. G. Plien. 

